EN ISO 7441:1995

Corrosion of metals and alloys - Determination of bimetallic corrosion in outdoor exposure corrosion tests (ISO 7441:1984)

Applies to metals and alloys, and metals and alloys with metallic and non-metallic non-organic coatings. The methods are intended for the determination of the amount and type of corrosion effect, arising in natural atmospheres, caused by contact with different metals (coated metals), and for the evaluation of the effectiveness of bimetallic corrosion protection treatments.

Korrosion von Metallen und Legierungen - Bestimmung der Kontaktkorrosion durch Freibewitterungsversuche (ISO 7441:1984)

In dieser Internationalen Norm sind Verfahren zur Bestimmung der Korrosions- wahrscheinlichkeit bei Korrosionsbelastung durch Kontaktkorrosion von Metallen und Legierungen und von Metallen und Legierungen mit metallischen und nichtmetallischen, anorganischen Überzügen durch Freibewitterung festgelegt. Anmerkung : In dieser Internationalen Norm wird die Benennung "Metall" sowohl für Metalle als auch Legierungen und die Benennung "beschichtetes Metall" für Metalle und Legierungen mit metallischen und nichtmetallischen, anorganischen Schutzschichten verwendet.

Corrosion des métaux et alliages - Détermination de la corrosion bimétallique par des essais de corrosion en milieu extérieur (ISO 7441:1984)

La présente Norme internationale spécifie des méthodes de détermination de la corrosion bimétallique des métaux et alliages nus ainsi que des métaux et alliages des revêtements métalliques et non métalliques, non organiques, par des essais de corrosion en milieu extérieur.
NOTE -- Dans le texte de la présente Norme internationale, le terme « métal » est employé aussi bien pour les métaux que pour les alliages, et le terme « métal revêtu » pour les métaux et alliages avec revêtements métalliques et non métalliques, non organiques. Les méthodes visent à déterminer l'ampleur et le type des manifestations de la corrosion engendrés en atmosphères naturelles par le contact de métaux (métaux revêtus) différents et à évaluer l'efficacité des traitements de protection contre la corrosion bimétallique.

Korozija kovin in zlitin – Ugotavljanje kontaktne (na stiku dveh kovin) korozije s preskušanjem v naravi (ISO 7441:1984)

General Information

• Status: Withdrawn
• Publication Date: 08-Jan-1995
• Withdrawal Date: 13-Jan-2015
• ICS: 77.060 - Corrosion of metals
• Technical Committee: CEN/TC 262 - Metallic and other inorganic coatings
• Drafting Committee: CEN/TC 262/WG 2 - Hot dip galvanized coatings
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 14-Jan-2015
• Completion Date: 14-Jan-2015
• Ref Project: SIST EN ISO 7441:1999 - Corrosion of metals and alloys - Determination of bimetallic corrosion in outdoor exposure corrosion tests (ISO 7441:1984)

Relations

• Replaced By: EN ISO 7441:2015 - Corrosion of metals and alloys - Determination of bimetallic corrosion in atmospheric exposure corrosion tests (ISO 7441:2015)
• Effective Date: 04-Feb-2009

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 7441:1999
01-oktober-1999
Korozija kovin in zlitin – Ugotavljanje kontaktne (na stiku dveh kovin) korozije s
preskušanjem v naravi (ISO 7441:1984)
Corrosion of metals and alloys - Determination of bimetallic corrosion in outdoor
exposure corrosion tests (ISO 7441:1984)
Korrosion von Metallen und Legierungen - Bestimmung der Kontaktkorrosion durch
Freibewitterungsversuche (ISO 7441:1984)
Corrosion des métaux et alliages - Détermination de la corrosion bimétallique par des
essais de corrosion en milieu extérieur (ISO 7441:1984)
Ta slovenski standard je istoveten z: EN ISO 7441:1995
ICS:
77.060 Korozija kovin Corrosion of metals
SIST EN ISO 7441:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7441:1999

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SIST EN ISO 7441:1999

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SIST EN ISO 7441:1999

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SIST EN ISO 7441:1999
International Standard
INTt RNATIONAL ORGANIZATION FOR STANDARDIZATION.MEX~YHAPOAHAR OPTAHVl3AlJt’lfl I-IO CTAHAAPTM3AI.&IVl*ORGANlSATlON INTERNATIONALE DE NORMALISATION
Corrosion of metals and alloys - Determination of
bimetallic corrosion in outdoor exposure corrosion tests
Corrosion des m& taux et alliages - 06 termination de la corrosion bim&allique par des essais de corrosion en milieu extkieure
First edition - 1984-12-15
Ref. No. IS0 7441-1984 (E)
UDC 620.193.2 : 621.357.7
Descriptors : corrosion, metals, alloys, tests, determination, corrosion resistance, bimetallic corrosion tests, atmospheric corrosion.
Price based on 12 pages

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SIST EN ISO 7441:1999
Foreword
IS0 (the International Organization for Standardization1 is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
International Standard IS0 7441 was prepared by Technical Committee ISO/TC 156,
Corrosion of metals and alloys.
0 International Organization for Standardization, 1984
Printed in Switzerland

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SIST EN ISO 7441:1999
IS0 7441-1984 (E)
INTERNATIONAL STANDARD
Corrosion of metals and alloys - Determination of
bimetallic corrosion in outdoor exposure corrosion tests
1 Scope and field of application
The test specimens are assemblies in which one plate of metal
(coated metal) may act as the anode and two plates of a dif-
This International Standard specifies methods for the deter-
ferent metal (coated metal) as the cathode, thereby producing
mination of bimetallic corrosion of metals and alloys, and
an electrochemical cell in the presence of an electrolyte. (See
metals and alloys with metallic and non-metallic non-organic figures 1 and 2.)
coatings, in outdoor exposure corrosion tests.
Reference specimens are anodic plates exposed with the test
NOTE - In the text of this International Standard, the term “metal” is
specimens.
used for both metals and alloys, and the term “coated metal” for
metals and alloys with metallic and non-metallic non-organic coatings.
Control specimens are anodic plates which are kept under con-
ditions which prevent corrosion during the test period.
The methods are intended for the determination of the amount
and type of corrosion effect, arising in natural atmospheres,
The amount and type of corrosion effect is evaluated on the
caused by contact with different metals (coated metals), and
basis of:
for the evaluation of the effectiveness of bimetallic corrosion
protection treatments.
-
changes in surface appearance;
- depth and area of corrosion effect;
2 References
-
changes in mechanical properties;
I S 0 1456, Metallic coatings - Electroplated coatings of nickel
- loss in mass;
plus chromium.
-
other characteristics resulting from bimetallic cor-
I SO 2081, Metallic coatings - Electroplated coatings of zinc on
rosron.
iron or steel. 1)
The effectiveness of corrosion protection treatments may be
IS0 2082, Metallic coatings - Electroplated coatings of cad-
evaluated by applying coatings to the anodic or cathodic plates
mium on iron or steel.2)
or to the te
...